From 4a18eac9272d5d15eba557bc63729e309141e50a Mon Sep 17 00:00:00 2001
From: Johannes Marbach <johannesm@element.io>
Date: Wed, 29 Jul 2026 17:49:54 +0200
Subject: [PATCH] Allow widgets to receive MatrixRTC slot events (#34373)

Signed-off-by: Johannes Marbach <n0-0ne+github@mailbox.org>
---
 apps/web/src/stores/widgets/ElementWidgetDriver.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/apps/web/src/stores/widgets/ElementWidgetDriver.ts b/apps/web/src/stores/widgets/ElementWidgetDriver.ts
index 5a0a6223c2..951baefa65 100644
--- a/apps/web/src/stores/widgets/ElementWidgetDriver.ts
+++ b/apps/web/src/stores/widgets/ElementWidgetDriver.ts
@@ -139,6 +139,9 @@ export class ElementWidgetDriver extends WidgetDriver {
             this.allowedCapabilities.add(
                 WidgetEventCapability.forStateEvent(EventDirection.Receive, "org.matrix.msc3401.call").raw,
             );
+            this.allowedCapabilities.add(
+                WidgetEventCapability.forStateEvent(EventDirection.Receive, "org.matrix.msc4143.rtc.slot").raw,
+            );
             this.allowedCapabilities.add(
                 WidgetEventCapability.forStateEvent(EventDirection.Receive, EventType.RoomEncryption).raw,
             );